Shows how to define variables to stop degenerate examples.

Converting binary number to decimal.

Entering numbers and algebraic symbols  in Numbas.

Information on inputting powers

Entering numbers and algebraic symbols  in Numbas.

Details on inputting numbers into Numbas.

Dealing with functions in Numbas.

Inputting ratios of algebraic expressions.

Inputting algebraic expressions into Numbas.

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multiple choice testing csc, sec, cot  of  random(pi/6, pi/4, pi/3) radians

Applying trigonometry to find heughts and lengths.

Finding lengths of sides of triangles

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Given th original formula the student enters the transformed formula

Sin graph in radians

READY TO USE

Questions about logical predicates, and basic set theory concepts.

Convert degrees to radians and radians to degrees.

Finding lengths of sides of triangles

Calculations in $\mathbb{Z_n}$ for three values of $n$.     

A particle is projected up a rough plane at a given speed. Given the angle of the slope and the coefficient friction, find the distance the particle travels before it comes to instantaneous rest.

Collisions question involving principle of conservation of momentum.

Three forces act on a particle. You're given the magnitude of one, and the directions of all three. Find the magnitudes of the other two forces.

A mass is hanging from a string, tethered to two points. A horizontal force applied to the mass holds it directly underneath one of the points. Given the magnitude of the force, find the tension in the string and the mass of the bag.

A box is being pushed up a slope by a horizontal force. Calculate the normal reaction force, and the acceleration of the box up the slope.

A block of given mass is sliding down the plane, with given acceleration. Find the normal reaction force, the coefficient of friction, and the distance travelled before reaching a given speed.

Finding speeds and impulses 

Find the weight of a particle when the mass and acceleration due to gravity is known. Using $F=ma$ to find the acceleration of the particle when it is acted on by a resultant force.

Find the $x$ and $y$ components of a force which is applied at an angle to a particle. Resolve using $F \cos \theta$. The force is applied in the negative $x$ and negative $y$ direction.